What is a colonoscopy?

A colonoscopy is a medical procedure that involves examining the large intestine (colon) using a long, flexible tube with a camera on the end called a colonoscope. The procedure is typically performed by a gastroenterologist, a medical doctor who specializes in the digestive system.

During a colonoscopy, the patient lies on their side while the colonoscope is inserted through the rectum and advanced through the entire colon. The camera on the end of the colonoscope transmits images to a monitor, allowing the doctor to examine the lining of the colon for abnormalities, such as polyps, tumors, or inflammation. If any abnormal tissue is found, the doctor may take a biopsy or remove it during the procedure.

Colonoscopies are used for both diagnostic and therapeutic purposes. They are often performed as a screening test for colon cancer in people over the age of 50, as well as for individuals with a family history of colon cancer or other risk factors. Colonoscopies can also be used to investigate symptoms such as abdominal pain, rectal bleeding, and changes in bowel habits.


Why have a colonoscopy?

There are several reasons why someone might need to have a colonoscopy :

  • Screening for colon cancer : Colonoscopies are one of the most effective methods for detecting colon cancer early, when it is most treatable. It is recommended that people at average risk for colon cancer begin getting screened at age 50 and repeat the procedure every 10 years if no polyps or abnormalities are found ;
  • Investigation of digestive symptoms : A colonoscopy may be recommended if you are experiencing symptoms such as abdominal pain, rectal bleeding, diarrhea, constipation, or changes in bowel habits ;
  • Polyp removal : If a polyp is found during the colonoscopy, the doctor can remove it during the procedure, which may prevent it from developing into colon cancer in the future ;
  • Diagnosis of inflammatory bowel disease (IBD) : Colonoscopies can help diagnose inflammatory bowel diseases such as Crohn’s disease and ulcerative colitis, which cause inflammation and damage to the digestive tract ;
  • Follow-up after previous colon surgery : If you have had previous colon surgery, a colonoscopy may be needed to ensure that the colon has healed properly and to monitor for any signs of recurrence ;

It’s important to talk to your doctor about the benefits and risks of a colonoscopy and whether it is appropriate for you based on your individual medical history and risk factors.

Colonoscopy price

The cost of a colonoscopy can vary widely depending on several factors, including the geographic location, the healthcare provider, and whether or not the procedure is covered by health insurance.

In the United States, the average cost of a colonoscopy without insurance ranges from $3,000 to $5,000, although some facilities may charge more or less. However, many health insurance plans cover colonoscopies as a preventive screening test, which can significantly reduce the cost for the patient.

If you are concerned about the cost of a colonoscopy, it is recommended that you contact your health insurance provider to determine what portion of the cost will be covered under your plan. You may also be able to negotiate the cost of the procedure with your healthcare provider or explore options for financial assistance or payment plans.

Risks of a colonoscopy

Like any medical procedure, a colonoscopy carries some risks, although serious complications are relatively rare.

Some of the risks associated with a colonoscopy include :

  • Bleeding : It is possible for the colonoscope to cause small tears in the lining of the colon, which can lead to bleeding. In most cases, this bleeding is mild and stops on its own, but in rare cases, it may require further treatment ;
  • Infection : Although rare, it is possible to develop an infection following a colonoscopy. This is most commonly caused by bacteria introduced during the procedure. Symptoms of an infection may include fever, chills, and abdominal pain ;
  • Perforation : In rare cases, the colonoscope can puncture or perforate the wall of the colon, which can be a serious complication requiring emergency surgery ;
  • Adverse reaction to sedation : Colonoscopies are typically performed under sedation, and some people may experience an adverse reaction to the sedative medication ;
  • Other risks : In rare cases, a colonoscopy may cause other complications such as a heart attack, stroke, or pulmonary embolism ;

It’s important to discuss any concerns or questions you may have about the risks of a colonoscopy with your doctor. They can help you weigh the risks against the benefits of the procedure and determine if it is appropriate for you.

How to prepare for a colonoscopy?

Preparing for a colonoscopy is an important step to ensure the procedure is successful and accurate.

Here are some general guidelines to follow when preparing for a colonoscopy :

  • Follow your doctor’s instructions : Your doctor will provide you with specific instructions on how to prepare for the colonoscopy. It is important to follow these instructions closely to ensure the best results ;
  • Adjust your diet : In the days leading up to the procedure, you will need to follow a low-fiber diet and avoid certain foods such as nuts, seeds, and raw fruits and vegetables. You may also be asked to drink clear liquids such as water, clear broth, and sports drinks ;
  • Take any prescribed medications : Your doctor may recommend that you stop taking certain medications before the procedure. It’s important to follow their instructions carefully and continue taking any medications that have been prescribed for you ;
  • Use laxatives or enemas : In order to clear the colon of any stool, your doctor may recommend that you use laxatives or enemas. These can help to flush out the colon and improve the accuracy of the procedure ;
  • Arrange for transportation : You will be given sedatives during the colonoscopy, which can impair your ability to drive or operate machinery. It’s important to arrange for transportation to and from the procedure ;

It’s important to talk to your doctor about any specific concerns or questions you may have about how to prepare for a colonoscopy. By following their instructions and preparing carefully, you can help to ensure the best possible results from the procedure.

What you can expect during the colonoscopy procedure?

Colonoscopy is a medical procedure that allows a doctor to examine the inside of your large intestine (colon) for any abnormalities or signs of disease.

Here’s what you can expect during a colonoscopy :

  • Preparation : You will need to prepare for a colonoscopy by cleaning out your colon using a laxative or other bowel preparation. This will ensure that the doctor can see the inside of your colon clearly during the procedure ;
  • Anesthesia : You will receive a sedative or anesthesia to help you relax and minimize discomfort during the procedure. You may be fully asleep or only partially sedated, depending on the type of anesthesia used ;
  • Insertion of the colonoscope : A colonoscope is a long, flexible tube with a camera and light at the end. The doctor will insert the colonoscope into your rectum and slowly guide it through your colon, examining the lining of the colon as it goes ;
  • Air or water may be used to inflate the colon so that the doctor can see its walls better. This may cause a sensation of fullness or pressure in your abdomen.
  • Biopsy : During the procedure, the doctor may take tissue samples (biopsies) from the lining of the colon. These samples will be sent to a laboratory for testing to check for any signs of cancer or other diseases ;
  • Removal of polyps : If any polyps (small growths) are found in the colon, the doctor may remove them during the procedure using a tiny snare wire passed through the colonoscope ;

Completion and recovery : After the procedure is complete, the colonoscope will be removed, and you will be taken to a recovery area to rest until the effects of the sedative wear off. You will need someone to drive you home, and you may need to take it easy for the rest of the day ;

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